package iOperations;

import book.Book;
import book.BookList;

import java.util.Scanner;

/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: 86136
 * Date: 2024-06-03
 * Time: 12:49
 */
public class DelOperation implements IOperations{
    @Override
    public void work(BookList bookList) {
        System.out.println("删除书籍");
        System.out.println("请输入您要删除的图书名字");
        Scanner scanner = new Scanner(System.in);
        int pos = -1;
        String name = scanner.nextLine();
        int currentSize = bookList.getUsedSize();
        int i = 0;
        for (; i < currentSize; i++) {
            if(name.equals(bookList.getBooks()[i].getName())) {
                pos = i;
                break;
            }
        }
        if (i == currentSize) {
            System.out.println("没有你想删除的图书");
            return;
        }
        int j = pos;
        for (;j < bookList.getUsedSize()-1; j++) {
            Book book = bookList.getBooks()[j+1];
            bookList.setBooks(j,book);
        }
        bookList.setBooks(j,null);
        bookList.setUsedSize(currentSize-1);
        System.out.println("删除成功");
    }
}
